Multiaxial fatigue life prediction for metals by means of an improved strain energy density-based critical plane criterion

In the present paper, a new generalized strain energy density-based life prediction model was proposed by analyzing the drawbacks of the commonly-used fatigue life prediction criteria. In the proposed model, the critical plane was defined as the maximum shear strain energy density plane with the larger normal strain energy density. A weight index was introduced in this model to take into account the different influences of the normal and shear...